Cutter holder structure for assembling and positioning cutter tube

Abstract

The utility model discloses a knife tube assembly positioning knife holder structure, which comprises a knife tube and a knife holder, a through hole is arranged in the knife holder, the through hole comprises an assembly part, an installation part and a separation part, the separation part is arranged between the assembly part and the installation part and is used for separating the assembly part and the installation part, the assembly part is used for assembling the knife tube, and the installation part is used for installing the knife tube. The mounting part is matched with the biopsy gun, the assembling part comprises a positioning section and a gluing section, the positioning section is located between the gluing section and the separation part, the inner wall of the positioning section is attached to the outer wall of the tool apron, and the size of the gluing section is gradually increased from the end facing the positioning section to the end away from the positioning section; according to the knife tube assembly positioning knife holder structure, the gluing section with the size gradually enlarged is adopted, the knife tube can be conveniently inserted into the assembly part knife holder, the positioning section attached to the outer wall of the knife tube is matched, the position of the knife tube can be effectively limited, dislocation of the knife tube is prevented, and it is guaranteed that the knife tube is aligned with the center position of the knife holder.

Description

Technical Field

[0001] The utility model relates to a biopsy technology, in particular to a knife tube assembly positioning knife seat structure. Background Art

[0002] Breast biopsy is the abbreviation of "breast biopsy pathological examination", which refers to the method of taking the lesion tissue from the patient's body for pathological examination by local excision, forceps extraction, puncture needle aspiration, scraping, removal and other surgical methods to determine the diagnosis;

[0003] At present, in order to facilitate the assembly of the knife tube of the disposable breast biopsy needle with the knife holder, there is a large gap between the knife tube and the knife holder. After the knife tube and the knife holder are assembled, they are fixed by glue. However, the existence of the gap will cause the knife tube to be unstable and easily deviate to the left or right, resulting in the inability to align the center positions of the knife tube, the knife holder and the biopsy gun, which is not conducive to the movement of the biopsy needle in the knife tube. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a knife tube assembly and positioning knife seat structure, which is convenient for assembling the knife tube on the knife seat and can ensure that the center positions of the knife tube and the knife seat are aligned.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a knife tube assembly and positioning knife seat structure, which is arranged on a biopsy gun, including a knife tube and a knife seat, a through hole is provided in the knife seat, the through hole includes an assembly part, an installation part and a partition part, the partition part is located between the assembly part and the installation part and is used to separate the assembly part and the installation part, the assembly part is used to assemble the knife tube, the installation part cooperates with the biopsy gun, the assembly part includes a positioning section and a glue coating section, the positioning section is located between the glue coating section and the partition part, the inner wall of the positioning section is in contact with the outer wall of the knife seat, and the size of the glue coating section gradually expands from one end toward the positioning section to the end away from the positioning section.

[0006] Preferably, the glue coating section is provided with a plurality of circular holes.

[0007] Preferably, a plurality of top blocks are provided on the top of the knife holder, and the top blocks cooperate with the housing of the biopsy gun.

[0008] Preferably, a plurality of side pin seats are provided on one side of the knife seat, and a pin hole and a locking pin are provided on the side pin seat. The locking pin cooperates with the pin hole and locks the knife seat and the biopsy gun housing.

[0009] Preferably, a clamping plate is provided on one side of the knife seat relative to the top block.

[0010] Preferably, a limit pin is provided on the card plate, and the limit pin is fixed to a side of the card plate opposite to the side pin seat.

[0011] In summary, the utility model has achieved the following technical effects:

[0012] The knife tube assembly and positioning knife seat structure of the utility model adopts a rubber coating section with a gradually increasing size, which is convenient for inserting the knife tube into the assembly knife seat, and cooperates with the positioning section that fits the outer wall of the knife tube to effectively limit the position of the knife tube, prevent the knife tube from being misplaced, and ensure that the center positions of the knife tube and the knife seat are aligned. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the assembly structure of the knife tube assembly positioning knife seat structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the knife tube assembly positioning knife seat structure of the utility model;

[0015] Figure 3 It is a cross-sectional view of the knife tube assembly positioning knife seat structure of the utility model;

[0016] Explanation of the reference numerals in the drawings in the specification: 1. knife seat; 2. knife tube; 3. limit pin; 4. top block; 5. side pin seat; 6. through hole; 7. assembly part; 71. positioning section; 72. glue coating section; 8. installation part; 9. partition part. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] Embodiment 1:

[0024] like Figure 1 -3 shows a knife tube assembly positioning knife seat structure, which is arranged on a biopsy gun, including a knife tube 2 and a knife seat 1. A through hole 6 is provided in the knife seat 1, and the through hole 6 includes an assembly portion 7, a mounting portion 8 and a partition portion 9. The partition portion 9 is located between the assembly portion 7 and the mounting portion 8 and is used to separate the assembly portion 7 and the mounting portion 8. The assembly portion 7 is used to assemble the knife tube 2, and the mounting portion 8 cooperates with the biopsy gun. The assembly portion 7 includes a positioning section 71 and a glue-coated section 72. The positioning section 71 is located between the glue-coated section 72 and the partition portion 9. The inner wall of the positioning section 71 is in contact with the outer wall of the knife seat 1, and the size of the glue-coated section 72 gradually increases from one end toward the positioning section 71 to the end away from the positioning section 71.

[0025] The knife tube 2 of the present embodiment is assembled with the knife seat 1 and has a positioning structure. The gluing section 72 with a gradually increasing size is used to facilitate the insertion of the knife tube 2 into the assembly portion 7 of the knife seat 1, and to facilitate gluing while retaining a certain amount of glue. In addition, the positioning section 71 that is in contact with the outer wall of the knife tube 2 can effectively limit the position of the knife tube 2, prevent the knife tube 2 from being misplaced, and ensure that the center positions of the knife tube 2 and the knife seat 1 are aligned.

[0026] The glue coating section 72 is provided with a plurality of circular holes; the provision of the circular holes is conducive to the discharge of internal air during glue coating, so that the glue fills the interior, and the glue can be replenished at three different positions.

[0027] Two circular holes are set at the end of the glue coating section 72 facing the positioning section 71, and one circular hole is set at the end of the glue coating section 72 away from the positioning section 71. Since the size of the glue coating section 72 gradually increases from the end facing the positioning section 71 to the end away from the positioning section 71, the size of the glue coating section 72 at the end facing the positioning section 71 is smaller, and it is difficult for the colloid to fill the entire glue coating section 72 from a single circular hole, so two circular holes are required; and the glue coating section 72 away from the positioning section 71 is larger in size and opens outward, so it is easy to replenish the glue, so only one circular hole is required.

[0028] A plurality of top blocks 4 are provided on the top of the knife holder 1, and the top blocks 4 cooperate with the upper shell of the biopsy gun housing; a plurality of side pin seats 5 are provided on one side of the knife holder 1, and pin holes and locking pins are provided on the side pin seats 5, and the locking pins cooperate with the pin holes and lock the knife holder 1 with the side wall of the biopsy gun housing; a clamping plate is provided on the side of the knife holder 1 relative to the top block 4, and the clamping plate cooperates with the lower shell of the biopsy gun housing; a limit pin 3 is provided on the clamping plate, and the limit pin 3 is fixed to the side of the clamping plate relative to the side pin seat 5, and the limit pin 3 is clamped and cooperated with the side wall of the biopsy gun housing.

[0029] The top block 4, the clamping plate, the side pin seat 5 and the limit pin 3 can stabilize the position of the knife holder 1 installed in the biopsy gun, which is conducive to aligning the knife holder 1 with the biopsy gun.

[0030] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A knife tube assembly positioning knife seat structure, arranged on a biopsy gun, characterized in that: It includes a knife tube and a knife seat, wherein the knife seat is provided with a through hole, wherein the through hole includes an assembly part, a mounting part and a partition part, wherein the partition part is located between the assembly part and the mounting part and is used to separate the assembly part and the mounting part, wherein the assembly part is used to assemble the knife tube, wherein the mounting part cooperates with the biopsy gun, wherein the assembly part includes a positioning section and a glue coating section, wherein the positioning section is located between the glue coating section and the partition part, wherein the inner wall of the positioning section is in contact with the outer wall of the knife seat, and the size of the glue coating section gradually increases from one end toward the positioning section to the end away from the positioning section.

2. A knife tube assembly and positioning knife seat structure according to claim 1, characterized in that: The glue coating section is provided with a plurality of circular holes.

3. The knife tube assembly and positioning knife seat structure according to claim 1, characterized in that: A plurality of top blocks are arranged on the top of the knife seat, and the top blocks are matched with the shell of the biopsy gun.

4. A knife tube assembly and positioning knife seat structure according to claim 3, characterized in that: A plurality of side pin seats are arranged on one side of the knife seat, and pin holes and locking pins are arranged on the side pin seats. The locking pins cooperate with the pin holes and lock the knife seat and the biopsy gun housing.

5. A knife tube assembly and positioning knife seat structure according to claim 4, characterized in that: A clamping plate is provided on one side of the knife seat relative to the top block.

6. A knife tube assembly and positioning knife seat structure according to claim 5, characterized in that: The clamping plate is provided with a limit pin, and the limit pin is fixed to a side of the clamping plate opposite to the side pin seat.

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